Pressure-controlling mechanism for pressure cookers



Nov. 11, 4- 1,515,184

J. E. WAGGONER PRESSURE CONTROLLING MECHANISM FOR'PRESSURE COOKERS Original Filed March 20. 1918 1&

l/ All J/QU/ZZW Jacob I Waggoner;

plication, Serial No. 223,556,

Patented Nov. 11, 1924.

moon n. wseeonna, or'cnrcaco, rumors. Y

PRESSURE-CONTROLLING MECHSM FOE, PRESSURE COOKERS.

Original application filed March 20,

To all whom it may concern:

Be itknown that I, JAcoB E. WAGGONER, a citizen of the United States, residing at Chicago, in'the county of Cook and State of Illinois, have invented certain new and useful Improvements in Pressure-Controlling Mechanism for Pressure Cooke-rs, .of which the following is a specification.

This invention relates to the class of cooking vessels in which a self-generated pressure of steam is maintained for the purpose of expediting the cooking operation and effecting an economy in fuel consumed. More particularly the invention relates to pressure controlling mechanism forming apart of the cooker. This applicationis a division of my copending apfiled March 20,

The object of the invention is to provide .a' simple and eflicient improved pressure controlling mechanism for pressure cookers adapted to meet all of the requirements for succemful use.

- This and other objects are accomplished 4 by means of the arrangement disclosed on the accompanying sheet of drawings, in which- Figure 1 is a side elevation of my improved cooker embodying the pressure control mechanism; and,

Figure 2 is a sectional elevation of the pressure controlling mechanism.

' The various novel features of the invention willbe a parent from the following drawings and will be particularly pointed out in the appended claims.

Referring to the drawings, the body portion orreceptacle 10 of the pressure cooker is shaped, in general, like anv ordinary cooking kettle. Upon this body portion, which 1s preferably made of alumlnum, may be placed the sealing cover 12, also of aluminum. The body and cover may be of any.

suitable design and clamped together in operat've association in any suitable manner, as described in said parent application Serial No. 223,556.

In view of the relates primarily to the pressure controlling mechanism, attention is now called thereto. This pressure controlling mechanism includes a pressure controlling valve 31 comprising a movable conical valve member 32 fact that this invention 1918, Serial No. 223,556. Divided and this application filed April 15, 1920. Serial No. 374,058. i

which rests on the conical valve seat 33 formed in the enlarged upper portion 34 of the opening 35 in the tubular-projection 36 on the cover 12. Sus ended from the movable valve member 32 hy means of the straps 37 and 38, and surrounding said. tubular projection, is a weight in the form of an annular platform 39, upon which one or more annular weights 40.may be placed. The enlarged ortion 34 has a conical guide surface 41 at its upper end to cooperate with the valve member 32. A plurality of Vent openings 42, to permit the escape of steam when the valve member is moved off its seat, are provided in the tubular extension.

In operating the cooker a predetermined amount of water, together with the material to be cooked, canned or preserved, is placed within the body portion or reoeptacle and the cover is placed and clamped in position thereon. The movable member 32 of the valve 31 is placed in 1 tinuously or intermittently, to the cooker to enerate and maintain any desired pressure.

f the pressure becomes too great, the valve operates to relieve the pressure.

When the operation of cooking or canning is completed, the pressure is relieved by permitting the steam to escape through the valve. After the pressure has gone down, and not before, the cover may be released by removingthe clanipin means.

It is my intention to cover al modifications of the invention falling within the spirit and scope of the following claims.

I claim:

'1. Pressure controlling mechanism for a pressure cooker having a cover and includin a valve mounted on said cover and comprising a tubular member, the opening through which is enlarged at one of its ends to form a valve seat and a guide seat, a mov- I able valve member resting upon said seats, and an annular platform surrounding said tubular member and suspended from said movable member, said platform adapted to receive one or more weights.

2; Pressure controlling mechanism for a pressure cooker having a cover and including a valve mounted on said cover and comprising a tubular member, the opening prising a tubular member,

through which is enlarged at one of its ends to form valve and guide seats, a movable valve member resting upon said seats, and a Weighted member suspended from said movable valve member.

3. Pressure controlling mechanism for a pressure cooker having a cover and'including a valve mounted on said cover and comthe opening through which is enlarged at one of its portions, said enlarged opening having a conical seat at its lower end and a guide seat thereabove, a movable conical valve member resting upon said seats and movable in said enlarged opening, and an annular platform surrounding said tubular member and suspended from said movable member, said platform adapted to receive one or more Weights.

4. Pressure controlling mechanism for a pressure cooker having a cover and including a valve mounted on said cover and comprising a tubular member having a conical valve seat and guide surface. a valve memher movable on said seat and engaging said guidesurface, the movable valve member bemg normally out of contact with said tubular member between the conical valve seat and guide surface.

v5. Pressure controlling mechanism for a pressure cooker having a cover and includ ing a valve mounted on said cover and com prising a tubular member having a conical valve seat and guide surface, a valve member movable on saidseat and engaging said guide surface, the movable valve member bemg normally out of contact with said tubular member between the conical valve seat and guide surface, and means for varying the pressure of said movable valve member may escape and pass said vvelghted member when the valve is unseated.

7. Pressure valve mechanismincluding, in combination, a tubular member the opening through Which is enlargedat one point to form guide means and a conical valve seat, a movable valve member normally resting on said seat and guided by said guide means, and a Weighted member suspended from said valve outside of said-tubular member.

8. Pressure valve mechanism including, in combination, a tubular member the openin through which is enlarged at the upper end to form a valve seat, there being lateral release openings in said tubular member intermediate the ends of said seat, a movable valve member normally resting on said valve seat normally to prevent the escape or iluid under pressure, and a Weighted member suspended from said valve outside of said tubular member.

Sled at Chicago, Illinois, this 31st day of March, 1920. v

JACQB 1E, WAGGUNERH 

